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Renesas R7FA2L1AB3CFN#AA0
- Part No.:
- R7FA2L1AB3CFN#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R7FA2L1AB3CFN#AA0.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 80LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:406
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Product details
Overview
R7FA2L1AB3CFN#AA0 from Renesas is an ultra-low-power 32-bit Arm® Cortex®-M23 microcontroller operating at up to 48 MHz, featuring 256 KB code flash, 32 KB SRAM, 12-bit ADC/DAC, Capacitive Touch Sensing Unit (CTSU2), and integrated CAN 2.0B interface - deployed in battery-powered industrial HMI, smart sensors, and energy-efficient control systems.
For engineers reviewing the R7FA2L1AB3CFN#AA0 datasheet, R7FA2L1AB3CFN#AA0 pinout, R7FA2L1AB3CFN#AA0 application, or R7FA2L1AB3CFN#AA0 equivalent, key selection criteria include its -40°C to +105°C industrial temperature rating, 80-pin LQFP package with 66 GPIOs (5-V tolerant on 5 pins), CTSU2-based touch interface support, and hardware AES-128/256 + TRNG for secure firmware updates.
Technical Context
The R7FA2L1AB3CFN#AA0 implements Armv8-M architecture with Memory Protection Unit (8 regions) and CoreSight™ debug infrastructure (SW-DP, MTB-M23). Its system-level timing relies on multiple clock sources including HOCO (48 MHz), SOSC (32.768 kHz), and IWDT-dedicated 15 kHz oscillator - enabling precise low-power operation across sleep modes.
Analog subsystem integration includes ADC12 (19-channel, 12-bit SAR), DAC12 (1-channel), ACMPLP (2 low-power comparators), and TSN (on-die temperature sensor). The Event Link Controller (ELC) enables autonomous peripheral-to-peripheral triggering without CPU intervention, critical for deterministic real-time response in motor control and sensor fusion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M23, 48 MHz max - delivers deterministic real-time execution with TrustZone®-enabled security isolation. |
| Memory | 256 KB code flash + 8 KB data flash + 32 KB SRAM with ECC - supports robust firmware storage, parameter retention, and safe runtime data handling. |
| ADC/DAC | 12-bit ADC12 (19 channels) + 12-bit DAC12 (1 channel) - enables high-resolution sensor acquisition and analog actuator control in closed-loop systems. |
| Connectivity | CAN 2.0B (32 mailboxes), SCI ×5, IIC ×2, SPI ×2 - provides native automotive-grade bus communication and flexible peripheral interfacing. |
| Touch Interface | Capacitive Sensing Unit (CTSU2) - supports up to 32 electrodes for reliable, noise-immune touch buttons/sliders without external components. |
| Security | AES-128/256 + True Random Number Generator (TRNG) - enables secure boot, encrypted OTA updates, and cryptographic key generation. |
| Power Range | 1.6 V to 5.5 V supply - allows direct connection to Li-ion, 3.3 V, or 5 V rails without level-shifting in mixed-voltage designs. |
Pinout & Package
Package: 80-pin LQFP (12 mm × 12 mm, 0.5 mm pitch), industrial grade (-40°C to +105°C), Pb-free Sn finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: VCC powers digital core and I/O; AVCC0/AVSS0 isolate analog section for clean ADC/DAC operation. |
| P010/VREFH0, P011/VREFL0 | Analog reference inputs | Configurable reference voltage pins for ADC12 - enable ratiometric or absolute voltage measurement with external precision references. |
| CRX0 / CTX0 | CAN transceiver interface | Dedicated differential CAN RX/TX pins requiring external transceiver (e.g., SN65HVD230) for physical layer compliance. |
| P300/SWCLK, P108/SWDIO | Debug interface | Standard 2-pin SWD interface - supports full debug, flash programming, and real-time trace via J-Link or CMSIS-DAP adapters. |
| TS17 / TS18 | Capacitive touch sense inputs | CTSU2 electrode pins - support self- or mutual-capacitance sensing with programmable sensitivity and noise rejection. |
| GTIOC6A / GTIOC6B | GPT16 channel outputs | 16-bit general PWM timer outputs - drive BLDC motor phases or generate precise timing signals for power conversion. |
Key Features
| Feature | Design Value |
|---|---|
| Low-Power Asynchronous Timer (AGT) | Two independent 16-bit timers running from sub-clock (32.768 kHz) - maintain timekeeping and wake-up events during deep-sleep modes (down to 0.25 µA). |
| Event Link Controller (ELC) | Hardware routing of 128+ peripheral events - eliminates CPU polling and interrupt latency for time-critical signal chains (e.g., ADC trigger → DMA → CRC). |
| Capacitive Touch Sensing Unit (CTSU2) | Multi-electrode scanning with built-in noise cancellation - achieves >80 dB common-mode rejection for touch operation in noisy industrial environments. |
| Realtime Clock (RTC) | Calendar mode (2000–2099) with leap-year correction - provides accurate timestamping for data logging and scheduled wake-up without external RTC IC. |
| Data Transfer Controller (DTC) | Autonomous memory-to-peripheral transfers - offloads CPU during high-bandwidth operations like SPI flash reads or ADC burst sampling. |
Applications
| Industrial HMI Panels | Smart Sensor Nodes |
|---|---|
Use Scenario: Touch-enabled operator interfaces in PLCs, HVAC controllers, and panel meters operating in factory-floor environments with EMI and wide temperature swings. IC Role / Device Role / Timing Role: Main controller executing UI logic, managing CTSU2 touch detection, driving local displays via SPI/I2C, and communicating over CAN to field devices. Use Value: Integrated CTSU2 eliminates external touch controller ICs; 5-V-tolerant I/O simplifies interface to legacy 5 V peripherals; -40°C to +105°C rating ensures reliability in uncontrolled enclosures. | Use Scenario: Battery-powered environmental monitors (temperature, humidity, CO₂) deployed in remote locations with multi-year operational life requirements. IC Role / Device Role / Timing Role: System-on-chip managing sensor acquisition (ADC12 + TSN), secure wireless data transmission (AES-encrypted UART/SCI), and ultra-low-power sleep scheduling (AGT + RTC). Use Value: Sub-µA deep-sleep current enables >5-year battery life; on-chip TRNG + AES enables TLS handshake without external crypto co-processor; 1.6 V minimum VCC supports aging battery operation. |
| Energy-Efficient Motor Control | Secure Firmware Update Gateways |
Use Scenario: Fan/pump controllers in white goods and building automation where efficiency, acoustic noise, and thermal management are critical. IC Role / Device Role / Timing Role: Real-time motor commutation engine using GPT32/GPT16 for 3-phase PWM, AGT for timing-critical hall-sensor event capture, and ELC for synchronous ADC sampling at commutation points. Use Value: Hardware-accelerated PWM with POEG prevents shoot-through; CAC validates clock accuracy for safety-critical timing; dual 12-bit ADC/DAC enables closed-loop current/voltage regulation. | Use Scenario: Edge gateways receiving firmware updates over cellular or Ethernet, requiring cryptographic verification before flash programming. IC Role / Device Role / Timing Role: Secure bootloader verifying signed firmware images using SHA-256 + RSA-2048 (accelerated by DOC/CRC), then writing validated code to protected flash sectors. Use Value: On-chip AES-256 encrypts update payloads; TRNG seeds secure key derivation; flash area protection prevents unauthorized overwrite of bootloader or keys. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2L1AB2DFN#AA0 | Same RA2L1 family, identical 80-pin LQFP package and peripherals, but rated for -40°C to +85°C and 256 KB flash. | Targeted at commercial/indoor applications without extended temperature requirements. | Select when ambient operating temperature remains ≤85°C and cost optimization is prioritized over extended thermal margin. |
| STM32L562VEJ6 | Arm Cortex-M33 with TrustZone, 512 KB flash, 256 KB SRAM, but no integrated CTSU or CAN; requires external transceiver and touch controller. | Higher performance and memory, but increased BOM count and layout complexity for touch/CAN functions. | Choose when advanced security (SE, PSA-certified) and larger memory are required, and external component integration is acceptable. |
Compared with R7FA2L1AB2DFN#AA0, the R7FA2L1AB3CFN#AA0 adds guaranteed operation up to +105°C and retains identical feature set - making it optimal for under-hood or enclosed industrial deployments. Versus STM32L562VEJ6, it offers lower system-level cost and reduced design effort through integrated CTSU2 and CAN PHY interface support.
Availability
R7FA2L1AB3CFN#AA0 is available at Aetrix Electronics and suitable for industrial HMI, smart sensor nodes, and energy-efficient motor control applications requiring stable component supply, long-term lifecycle assurance, and qualified industrial-grade sourcing.
Supply support for R7FA2L1AB3CFN#AA0 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and enterprise markets.
The RA2L1 group is designed for ultra-low-power, cost-sensitive embedded applications demanding integrated analog, touch, security, and connectivity - targeting battery-operated and thermally constrained industrial edge devices.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2L1AB3CFN#AA0?
The R7FA2L1AB3CFN#AA0 features an Arm Cortex-M23 core compliant with Armv8-M architecture and operates at a maximum frequency of 48 MHz. It includes an 8-region Memory Protection Unit (MPU), DWT, FPB, and CoreSight™ MTB-M23 for debug and trace. This architecture enables efficient execution of real-time tasks while supporting TrustZone®-based software isolation for secure firmware partitioning in the R7FA2L1AB3CFN#AA0.
Does the R7FA2L1AB3CFN#AA0 support capacitive touch sensing, and how many electrodes can it handle?
Yes, the R7FA2L1AB3CFN#AA0 integrates the Capacitive Sensing Unit (CTSU2), which supports up to 32 electrodes in self-capacitance mode and up to 30 in mutual-capacitance mode. The CTSU2 includes built-in noise cancellation and automatic calibration, enabling robust touch button, slider, and wheel implementations without external components - a key capability confirmed in the R7FA2L1AB3CFN#AA0 datasheet (R01DS0385EJ0160).
What are the supported operating voltage and temperature ranges for the R7FA2L1AB3CFN#AA0?
The R7FA2L1AB3CFN#AA0 operates from 1.6 V to 5.5 V and is qualified for industrial temperature range of -40°C to +105°C. This wide voltage range allows direct interfacing with Li-ion batteries, 3.3 V logic, and legacy 5 V systems. Its extended temperature rating makes the R7FA2L1AB3CFN#AA0 suitable for deployment in sealed enclosures, under-hood automotive modules, and factory-floor equipment without active cooling.
How many analog-to-digital and digital-to-analog converter channels does the R7FA2L1AB3CFN#AA0 provide?
The R7FA2L1AB3CFN#AA0 includes a 12-bit successive approximation ADC12 with up to 19 input channels and a 12-bit DAC12 with one output channel (DA0). The ADC supports internal references (VREFH0/VREFL0), temperature sensor input, and internal voltage reference - enabling precision sensor measurement and analog actuator control within the same device, as specified in the R7FA2L1AB3CFN#AA0 functional description.
Is CAN bus communication supported natively on the R7FA2L1AB3CFN#AA0, and what standards does it comply with?
Yes, the R7FA2L1AB3CFN#AA0 includes a Controller Area Network (CAN) module compliant with ISO 11898-1 (CAN 2.0A/B), supporting both standard (11-bit) and extended (29-bit) message formats. It provides up to 32 configurable mailboxes and FIFO modes. However, the R7FA2L1AB3CFN#AA0 requires an external CAN transceiver (e.g., SN65HVD230) for physical layer signaling - the CAN module handles protocol processing only.
R7FA2L1AB3CFN#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RA2L1
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M23
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- CANbus, I2C, SCI, SPI, SmartCard, UART/USART
- Peripherals:
- AES, Capacitive Touch, DMA, LVD, POR, PWM, Temp Sensor, TRNG, WDT
- Number of I/O:
- 69
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 17x12b SAR; D/A 1x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2L1AB3CFN#AA0 FAQ
1.How can I place an order for R7FA2L1AB3CFN#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2L1AB3CFN#AA0 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for R7FA2L1AB3CFN#AA0 reliable?
The price and inventory of R7FA2L1AB3CFN#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2L1AB3CFN#AA0 is usually 5 days.
3.What payment methods are accepted for R7FA2L1AB3CFN#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2L1AB3CFN#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2L1AB3CFN#AA0?
R7FA2L1AB3CFN#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2L1AB3CFN#AA0 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for R7FA2L1AB3CFN#AA0?
For technical support, including R7FA2L1AB3CFN#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2L1AB3CFN#AA0 requirements.
6.How does Aetrix verify that R7FA2L1AB3CFN#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2L1AB3CFN#AA0 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that R7FA2L1AB3CFN#AA0 meets industry standards.
7.What is the process for return or replacement of R7FA2L1AB3CFN#AA0?
All R7FA2L1AB3CFN#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2L1AB3CFN#AA0, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The R7FA2L1AB3CFN#AA0 part is unused and in its original packaging.
Return procedure for R7FA2L1AB3CFN#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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